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Almost everyone has experienced a cramp at one time or another. Maybe you woke up in the middle of the night with your calf or foot muscle feeling tight, hard, and quite painful. These cramps are due to muscle spasms which occur when one or more of the muscles in your body involuntarily contracts. Most often this occurs in the skeletal muscles. Some examples include back muscle spasms as well as cramps in the arms and legs. You can also have muscle spasms in the neck.
So, what causes muscle spasms?
Well, there are a few possibilities. The leading causes of muscle spasms, at least skeletal ones, are dehydration and electrolyte imbalances. Poor blood circulation and overexertion are also big factors in spasm occurrences.